172642180

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{121579}}^1$

素因数の和:121659

約数の個数: 24

約数和(自身を含む): 367657920

約数和(自身を除く): 195015740

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 121579, 243158, 486316, 607895, 1215790, 2431580, 8632109, 17264218, 34528436, 43160545, 86321090, 172642180]

約数ペア:

[(1, 172642180), (2, 86321090), (4, 43160545), (5, 34528436), (10, 17264218), (20, 8632109), (71, 2431580), (142, 1215790), (284, 607895), (355, 486316), (710, 243158), (1420, 121579)]